What is the best treatment for crows feet?

Botox works well to paralyze the muscles that contract around the eye (orbicularis oculi) and create the radial lines (crows feet). If deep lines remain in the area when the muscles are no longer contracting, small amounts of a less hydrophilic (water attracting) filler can help (off label use of Volbella or Belotero). In some cases, fractional Laser might be a better option to reduce the lines. 

Thank you for your question. Botox is the non-surgical injectible treatment that is especially effective in patients experiencing early signs of aging. Botox can specifically address crow's feet. I suggest that you move forward and consult with a board certified facial plastic surgeon.
Best wishes,